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d3d12: implement pb_fence vtbl for cache/slab reuse

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Assisted-by: Claude Opus 4.7
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41322>
This commit is contained in:
Jesse Natalie 2026-05-01 14:51:41 -07:00 • committed by Marge Bot
parent b8f2b968de
commit 18012b69ab
1 changed files with 17 additions and 3 deletions
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20
src/gallium/drivers/d3d12/d3d12_bufmgr.cpp
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@ -23,6 +23,7 @@
#include "d3d12_bufmgr.h"
#include "d3d12_context.h"
#include "d3d12_fence.h"
#include "d3d12_format.h"
#include "d3d12_screen.h"
@ -366,8 +367,18 @@ d3d12_buffer_validate(struct pb_buffer *pbuf,
static void
d3d12_buffer_fence(struct pb_buffer *pbuf,
struct pipe_fence_handle *fence )
struct pipe_fence_handle *fence)
{
if (!fence)
return;
struct d3d12_buffer *buf = d3d12_buffer(pbuf);
struct d3d12_fence *f = d3d12_fence(fence);
uint64_t offset;
struct d3d12_bo *base = d3d12_bo_get_base(buf->bo, &offset);
if (f->cmdqueue_fence != base->screen->fence)
return;
if (f->value > base->last_used_fence)
base->last_used_fence = f->value;
}
const struct pb_vtbl d3d12_buffer_vtbl = {
@ -433,8 +444,11 @@ d3d12_bufmgr_destroy(struct pb_manager *_mgr)
static bool
d3d12_bufmgr_is_buffer_busy(struct pb_manager *_mgr, struct pb_buffer *_buf)
{
/* We're only asked this on buffers that are known not busy */
return false;
struct d3d12_bufmgr *mgr = d3d12_bufmgr(_mgr);
struct d3d12_buffer *buf = d3d12_buffer(_buf);
uint64_t offset;
struct d3d12_bo *base = d3d12_bo_get_base(buf->bo, &offset);
return base->last_used_fence > mgr->screen->fence->GetCompletedValue();
}
struct pb_manager *